Electron microscopy of human developing dentine

Noble, H.W.; Carmichael, A; Rankine, D.M.

doi:10.1016/0003-9969(62)90033-x

Cited by 38 publications

(4 citation statements)

References 3 publications

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“…Concerning the origin of the junctional predentin, authors have been at variance. It has been considered to be a product of odontoblasts (Lenz 1959, Takuma 1967, Silva & Kailis 1972, to originate through condensation from an amorphous intercellular substance in the dental papilla (Noble et al 1962) or to be secreted by pre-ameloblasts (Trelstad & Slavkin 1974, Orams 1978. Our observations are in favour of the last concept, as we observed continuity between intra-and extracellular filaments (Fig.…”

Section: Discussionsupporting

confidence: 52%

Immature complex odontoma: a light and electron microscopic study with reference to eosinophilic material and epithelio‐mesenchymal interaction

Slootweg

Rademakers

1983

J Oral Pathology Medicine

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A case of immature complex odontoma was examined by light and electron microscopy, looking for additional information on odontogenic, tissue‐associated eosinophilic material (EM). Moreover, the ultrastructural morphology of the lesion was related to normal odontogenesis. Firstly, EM appeared to represent two different kinds of material, both being akin to predentin. Secondly, it is supposed that heterotypic epithelio‐mesenchymal cellular contacts have to be interpreted in terms of ultimateodontoblastic differentiation and have nothing to do with stimulation of the transformation of pre‐ameloblasts into enamel producing ameloblasts. In the third place, it is supposed that aberrant histogenetic differentiation in the odontomas is due to a failure of the mesenchymal component to respond normally to epithelial inductive influences.

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Section: Discussionsupporting

confidence: 52%

Immature complex odontoma: a light and electron microscopic study with reference to eosinophilic material and epithelio‐mesenchymal interaction

Slootweg

Rademakers

1983

J Oral Pathology Medicine

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“…The dense filamentous matrix, light microscopically visible as a juxta-epithelial eosinophilic layer, has also been observed in the normal tooth germ (Noble et al 1962, Reith 1967 and is considered to be the first predentin, visible in the light microscope as a broadening of the basement membrane. Sisca & Provenza (1972) noted this layer beginning to form in the bell stage at first as a few filaments oriented perpendicularly to the basal lamina but later developing into the abovementioned filamentous matrix.…”

Section: Discussionmentioning

confidence: 95%

Epithelio‐mesenchymal morphology in ameloblastic fibro‐odontoma: a light and electron microscopic study

Slootweg

1980

J Oral Pathology Medicine

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Five cases of ameloblastic fibro‐odontoma were examined by light and electron microscopy. The ultrastructure of the epithelio‐mesenchymal interface was compared with the morphology of the normally developing tooth germ. It was noted that the ultrastructure of the tumors was identical with the normally developing odontogenic tissues up to but not including the differentiation of mesenchymal cells into tall columnar odontoblasts. The absence of odontoblasts in the ameloblastic fibro‐odontomas results in an absence of tubular dentin in place of which a homogeneous collagen‐containing material is synthesized. The failure of mesenchymal cells to acquire the morphology of tall columnar odontoblasts probably is due to the absence of the normally occurring induction of the mesenchyme by the odontogenic epithelium.

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“…According to LESTER and BOYDE [1], the VON KORFF fibers which were described in detail by VON KORFF in 1905 were later confirmed by WEIDENREICH in 1925 in connection with the formation of mantle dentin but they were not observed at the stage of circumpulpal dentin formation. These findings of WEIDENREICH have been endorsed by recent studies using the electron microscopy [1,2,3]. However, opinions are by no means agreed.…”

Section: Introductionmentioning

confidence: 91%